2025 Specialized Stumpjumper 15 Review | A Hugely Adjustable Trail Bike With A Clever Custom Shock
Рет қаралды 17,902
Күн бұрынSee the in-depth review here: flowmountainbike.com/tests/20...
The most recent version of the Specialized Stumpjumper launched in 2020 alongside the Stumpjumper EVO. Having earned plenty of media praise from around the globe, it didn’t take long for them to be established as two of the most popular trail bikes on the market.
As well received as they’ve been over the past four years, Specialized was eager to simplify its mountain bike lineup and reduce the amount of overlap between models. With the arrival of the longer travel Epic 8 and Epic EVO, a reshuffle further up the order was on the cards.
For 2025 Specialized has amalgamated the previous Stumpjumper and Stumpjumper EVO into a new bike called the Stumpjumper 15. The number refers to it being the 15th generation of the platform, which first arrived all the way back in 1981. There are very few bikes on the market that can claim that kind of lineage, making it a newsworthy event whenever a new version rolls around.
So how big of a deal is the new Specialized Stumpjumper 15, and just how different is it to its highly commended predecessors? We've been riding one over the past few weeks to find out!
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Specialized Stumpjumper 15 Video Contents
0:00 - Intro
0:49 - Specialized Stumpjumper 15 Overview
1:44 - Fox Float GENIE Shock
3:29 - Specialized Stumpjumper 15 Geometry & Sizing
4:11 - Specialized Stumpjumper 15 Price & Specs
5:23 - Specialized Stumpjumper 15 Weight
5:31 - Strengths
7:42 - Climbing & Pedalling Performance
8:30 - GENIE Shock Tuning
10:45 - Downsides
12:18 - Value For Money
13:01 - Flow's Verdict
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@paulhusby8344 13 күн бұрын
The man is a fantastic presenter!
@danm5810 13 күн бұрын
It’s good to see manufactures still putting effort into developing normal mtbs not just e-mtbs.
@LaurentiusTriarius 11 күн бұрын
Did you notice it looks like a slightly modified mold for this bike or just a cutout would be all it need to be a emtb. 🤢🤮
@ptrades800 5 күн бұрын
@LaurentiusTriarius I couldn't see past your Giant red nose 🤡
@johnkelly8070 11 күн бұрын
Will is quickly turning into a legend. Proffessionalising the delivery of the mtb review. Own style. Succinct insight. No matter how many reviews I might look into elsewhere if i want to know about a bike this is the benchmark. Keep up the great work Will! 🧐
@FlowMountainBikeYouTube 11 күн бұрын
Wow, that’s kind of you to say John! We put a lot of work into our reviews so it’s awesome to hear that feedback - thank you! [Wil]
@TheMirrorVision 12 күн бұрын
Great review and nice job describing the testing you did on the Genie shock + volume spacers!
@FlowMountainBikeYouTube 11 күн бұрын
Thanks mate, appreciate the feedback! [Wil]
@Rawkus919 13 күн бұрын
This looks cool. An genuine update and option. Just not sure about the electronic shift only.
@FlowMountainBikeYouTube 13 күн бұрын
Worth a try if you've never ridden wireless before. If cable is 100% your thing, we can see how the lack of options could be frustrating.
@Rawkus919 13 күн бұрын
@FlowMountainBikeKZfaq I love wireless systems, but it also limits drivetrain supply company too. No shimano build I guess.
@cgs-xi4bt 13 күн бұрын
Really nice & thorough review! Trying to hang on to my hard earned money 💰 but so tempted by this versatile bike...
@FlowMountainBikeYouTube 11 күн бұрын
Thanks mate, glad you enjoyed the review! I hear you on the money thing 😂 [Wil]
@deancleavesmith 12 күн бұрын
Awesome review, great to see how on trail adjustment to the genie can be made
@FlowMountainBikeYouTube 11 күн бұрын
Thanks Dean! It was cool to experiment with all those volume adjustments, makes such a difference on the trail. [Wil]
@darrylhausman-pk8cq 13 күн бұрын
Excellent review Will , love everything about it , except the price
@FlowMountainBikeYouTube 11 күн бұрын
Thanks Darryl! Agreed - looking forward to the alloy models arriving. Depending on the price and specs, that’s a bike I’d consider buying personally. [Wil]
@jamlee344 5 күн бұрын
The only review of the Stumpy 15 you need to watch. 👌 Nice bike. No headset cable routing. Shame about no cable port to the rear though. Hopefully the alloy version gets the option.
@FlowMountainBikeYouTube 5 күн бұрын
Thanks for the kind words mate, glad you enjoyed the review! [Wil]
@crankshoptv8141 13 күн бұрын
You'll have no cables, and be happy.
@dobsok84 13 күн бұрын
A swat box you can fill up to eat de bugs
@LaurentiusTriarius 11 күн бұрын
Not really. "Tear down that wall" c'mon Mr Gorbachev... I can also tell you that the resale value of GX axs isn't that great 💀🤣
@crankshoptv8141 11 күн бұрын
@@LaurentiusTriarius don't sell it, throw it away and buy new, on credit.
@tinoschneider6350 11 күн бұрын
Thanks for this detailed review and deep dive into the shock settings 🙏 . I really would love to know how a standard shock like the newest version of the RS Super Deluxe with the linear or linear XL air can would stack up against the genie shock. Maybe this is something we can learn in the near future.
@FlowMountainBikeYouTube 11 күн бұрын
Thanks mate, glad you enjoyed the review! I’d love to experiment with more shock options on the new Stumpy - great suggestion on the Linear XL air can for the SD shock! [Wil]
@petedog9581 10 күн бұрын
Nice vid and really good breakdown of this new bike. I don't get not releasing alloy and carbon frames at the same launch. It seems a cash grab for FOMO. My 2023 Rocky Mountain Instinct C30 with a heavy Deore group set is 33.8 lbs. w pedals stock and has 150/140 mm similar neutral geos and the Rocky has more adjustability w Ride9. I don't have offset headset cups, but there are aftermarket options. If I desired, I could buy a different linkage and shock and make my Instinct into an Altitude. $2800 US from Jenson. Why pay a boat load for a new, unproven, proprietary shock? That seems to be the thing driving the price up on this otherwise normal bike. I have gotten burned by Spec before w proprietary stuff. My E150 dual crown fork on an Enduro... a expensive conversion from a rear Brain. Nobody will service it bc it needs a N charge. Spec believes in "innovate or die' but their adherence to proprietary parts may be the death of them in the end. They have had more clunkers than games changers in the last 15 years.
@austinsteiner5822 13 сағат бұрын
Taking a page from Dvo’s book with the negative volume spacers
@alk399 10 күн бұрын
Great review, what track is this you're testing at?
@FlowMountainBikeYouTube 8 күн бұрын
Most of the trails in the video are at the La Larr Ba Gauwa MTB Park in Harcourt in Central Victoria. Great spot to ride! [Wil]
@Tanno_Buchino 3 күн бұрын
I have checked your reviews, and I'm still unsure which bike I should buy. Recently I checked your review bout Specialized Stumpjumper 2022. I like how it's an all-rounder bike, but I worry bout two things. The weight (I have seen other MTB being very light than this) and the usage to all of the parts (trails, climbing, etc). Based on those bikes you reviewed so far, which bike do you recommend that would be similar to Specialized Stumpjumper, but better and lighter?
@The.JZA. 13 күн бұрын
It seems that the new shock is a big part of the performance. So does that mean that it would be a downgrade to get the Ohlins coil shock model of this bike? That's the one that I want (if I actually had that kind of money to throw around).
@FlowMountainBikeYouTube 13 күн бұрын
It's a tough question to answer, as it's a bit of an apples to oranges comparison. Air and coil shocks fundamentally have very different characteristics, so a lot of it comes down to personal preference. We only tested the model with the Fox Genie air shock, which performed well during the testing period. It's obvious they put a lot of time and effort into designing the bike/ shock together. We'd be interested to try the Ohlins version to compare.
@richchin5163 11 күн бұрын
So how does it compare to your experiments with the prior Stumpy where you changed the shock to a Super Deluxe with HBO and added a bigger fork?
@FlowMountainBikeYouTube 11 күн бұрын
I really liked the previous Stumpy with the bigger fork and piggyback shock! That bike is still relevant in terms of geo, and its lightweight frame is certainly appealing. I think for lighter and sportier riders on flowier terrain, it remains a fantastic option. This new Stumpy 15 feels considerably burlier and plusher though. There’s more grip and bottom-out support is way higher. For rockier and steeper terrain, it’s a better bike for sure. And the adjustability in the GENIE and frame means you can adapt it for a lot of different trail types. [Wil]
@mbgerozaga 13 күн бұрын
Propriety shock? How is this different on having a RS Deluxe with Megneg? You can have tokens as well as bands to adjust progressivity
@paulb5390 13 күн бұрын
Because it has 2 separate air chambers. One for the first 70% travel. Another for the last 30%. Never been done before.. Proprietary is probably the wrong word. Nonetheless it seems like a cool shock that Specialized and Fox have developed
@CourtyardPigeon 12 күн бұрын
I have the 22022 Stumpjumper Pro, which is pretty much exactly this bike without the new shock on it. I paid $8500 USD for my bike and now it's $5500.00 USD....this bike in the Stumpjumper 15 Pro version is $9k USD, so I might wait until Christmas to see if they drop the price, if not I don't see a reason to upgrade when I'm going to lose so much on the sale of my bike just to pay for this when it hasn't changed that much
@TaoNony 11 күн бұрын
Same for me... Christmas or Birthday 😅
@pbls43 13 күн бұрын
That shock is basically a Monarch plus 😊
@southpawlibranine3511 13 күн бұрын
Looks ugly as a monarch too
@gweflj 13 күн бұрын
The Monarch didn’t have a two stage air chamber did it?
@trailblazeratv6306 13 күн бұрын
I would go with the Trance X that's $2000 off right now !!!
@Ka0sAssassin 13 күн бұрын
I just brought a new SJ evo comp got it for $4500 au, now i know why i got such a great price with this new model out a week after i buy one lol oh well 😊
@FlowMountainBikeYouTube 11 күн бұрын
Don’t fret too much - the STEVO is still an awesome bike, and sounds like you got a killer price on it too! [Wil]
@mitchsargent5543 13 күн бұрын
How does the shock compare to an air shock with a piggy back? (aside from weight savings)?
@FlowMountainBikeYouTube 11 күн бұрын
It really depends on which piggyback air shock you’re comparing it to. Any specific characteristics you’re curious about? There’s a lot more info in the full review about temperature and damping performance between the GENIE and piggyback shocks that might help to answer your question? [Wil]
@mitchsargent5543 9 күн бұрын
@@FlowMountainBikeKZfaq I see. Ok. I'll check out the shock review--THANK YOU!
@stevenboisvert1767 4 күн бұрын
I want cable shifting because it is far lighter, and far cheaper to repair and easier to source when I damage a derailleur at a race or bike trip. I don't want the massive weight penalty of their alloy frames either. I have an S-works EVO that I bought before they were being blown out at low prices so I am willing to pay the money. The Genie seems like a simple, reliable innovation but the lack of a cable option is a deal-breaker. Bummer.
@f1hotrod527 10 күн бұрын
This does not really make me want to get rid of my stumpy evo. I think this bike has slid right into the category of the fuel EX, and the fuel EX seems better. I also wonder how this bike compares to a Ripmo V2?
@The.JZA. 13 күн бұрын
How does it compare to the Mondraker Foxy? Nobody ever mentions it even though it's legit one of the most awesome trail bikes you can buy.
@FlowMountainBikeYouTube 13 күн бұрын
Earlier in 2023 we reviewed the Foxy. If you jump on our website and search for it, you should see it there.
@The.JZA. 13 күн бұрын
@@FlowMountainBikeKZfaq Yes, yes, I have read the review. It's a hard hitting, efficient pedalling, slick looking rocket ship of a bike. Not the plushest but certainly rowdy. I have the Mondraker Crafty R which is essentially the ebike version of the Foxy and I love it. I only made that comment because when you listed off the Stumpjumpers competition you didn't mention the Foxy and I felt personally slighted by that.
@dogfighter1 13 күн бұрын
How is it a proprietary design if they put Ohlins on it too?
@FlowMountainBikeYouTube 11 күн бұрын
The shock is proprietary given it’s a Specialized-specific design. The size however, 210x55mm, is standard and there’s clearance for you to fit pretty much any air or coil shock you like. Hope that helps explain! [Wil]
@Ajwilkie 13 күн бұрын
Can we run the Genie on the previous gen EVO?
@JimLacey357 13 күн бұрын
Another reviewer said no because the shock body is too large to fit next to the side arm.
@Ajwilkie 13 күн бұрын
@@JimLacey357 ahhh. That makes sense. Hadn’t thought of that part.
@justinfournier1285 13 күн бұрын
@@AjwilkieJust get a coil. My Evo has one and the video spends 5 minutes explaining the Genie on the SJ15 the same as an Evo with a coil you could have had for a few years.
@Ajwilkie 13 күн бұрын
@@justinfournier1285 what coil do you run?
@justinfournier1285 13 күн бұрын
@@Ajwilkie DHX because it’s one of the few on the approved list. DHX2 is not. Piston diameter. Bad design from Specialized.
@Stickybutton 10 күн бұрын
So its a current Stumpy EVO without the longer shock or fork.
@tomaszczapla9232 11 күн бұрын
will this be still a good choice if you want to have only 1 bike (for XC, trail and enduro) - that is the question. Like now the fantastic 2022 SJ Expert.
@FlowMountainBikeYouTube 11 күн бұрын
I think it’s an excellent all-rounder, but out of the box it is on the more aggressive side and is much closer to the previous EVO rather than the old Stumpjumper. If you wanted to ride more XC-type terrain I’d suggest packing the GENIE outer sleeve with all four volume spacers for a firmer feel, swapping to faster/lighter tyres and running the headset in the steep position. Personally, I love how much adjustability is in the shock and frame that means the bike can be setup for quite different riding styles and terrain. Hope that helps! [Wil]
@tomaszczapla9232 10 күн бұрын
@@FlowMountainBikeKZfaq Thanks for the answer! I thought either to walk the way you suggest or to skip to Epic 8 EVO pro
@numbers7905 13 күн бұрын
That shock looks a lot like the Ohlins TTX2 Air.
@FlowMountainBikeYouTube 11 күн бұрын
Very different inside! [Wil]
@101picofarad 13 күн бұрын
Да, перемычку пришлось убрать - с ней стягивать воздушную камеру мегнега можно только выкрутив болты амморта, а тот амморт что на новом байке - вообще не влез бы в старую раму ;). Но в целом переход к мясному линку вполне логичен - у старого сепеша торсионка так себе была.
@RadzioCzart 5 күн бұрын
How about comparing this bike with YT JEFFSY, regardless of the price, which one is better?
@FlowMountainBikeYouTube 5 күн бұрын
Great suggestion! We recently had the Capra MX in for review, but we're yet to get our hands on the latest Jeffsy - keen to test it out and see how it compares to the Stumpy! [Wil]
@patrixdan2661 12 күн бұрын
Why not throw a genie on the SJ EVO? Its cheaper and should have almost the same effect .
@FlowMountainBikeYouTube 11 күн бұрын
Great suggestion! Some folks in the comments here have mentioned there are clearance issues with the GENIE shock and the sidearm on the old Stumpy EVO - we’ll see if we can get confirmation from Spesh and will let you know! [Wil]
@FlowMountainBikeYouTube 7 күн бұрын
I heard back from Specialized - the GENIE shock will fit onto the old Stumpy EVO, and the team actually spent a lot of time testing prototype GENIE shocks on that bike. However, that may be a moot point as there's no indication as to whether Specialized or Fox will be selling the GENIE shock aftermarket anyway. I wouldn't be surprised if that changed in the future at some point, but time will tell! [Wil]
@rottieshepcalibre9156 12 күн бұрын
Much better mud flap
@FlowMountainBikeYouTube 11 күн бұрын
Agreed! The chainstay protector is really nice too - it bolts in underneath the mudflap and extends the entire length of the chainstay and then bolts into the most rearward pivot. Loads of coverage and very little noise while riding 👌 [Wil]
@mudkayak6305 13 күн бұрын
Hard no on wireless only. What we're they thinking.... "how do we make sure to tank our sales?"
@streddaz 13 күн бұрын
The alloy version will have cable routing for the plebs
@FlowMountainBikeYouTube 13 күн бұрын
@@streddaz It'll be interesting to see if alloy version are released. If so, will they have wireless or cable groupsets?
@streddaz 13 күн бұрын
@@FlowMountainBikeKZfaq well, I see that SRAM now have an even cheaper wireless groupset so maybe it will all go wireless only.🤔
@southpawlibranine3511 13 күн бұрын
@@streddaz axs is for the plebs
@danm5810 13 күн бұрын
It’s frustrating looking for new bikes and they all come with electronic shift with prices inflated as a result. Nothing wrong with xt cable drivetrain.
@Gerald-iz7mv 13 күн бұрын
is that a cross country bike?
@FlowMountainBikeYouTube 13 күн бұрын
Specialized slot the Stumpjumper into their all-mountain/ trail category of bikes.
@Gerald-iz7mv 13 күн бұрын
@@FlowMountainBikeKZfaq whats the diff between all mountain vs crosscountry?
@benoosthuizen4961 11 күн бұрын
Cross country bikes tend to have 100 - 120 mm of travel, where all-mountain / trail bikes tend to have 140 - 170 mm travel. Cross country bikes usually have steeper geometry, which makes them more nippy + quicker steering. All-mountain / trail bikes usually have slacker geometry, which makes them more stable at higher speeds. Cross country bikes are lighter and can be used for cross country racing. All-mountain / trail bikes are usually used for bigger terrain (steeper, more technical and bigger drops, jumps).
@fudganuld 13 күн бұрын
Thats lighter than my Steel Hardtail...Nice..Ha!!
@LaurentiusTriarius 11 күн бұрын
It looks small and disproportionate. Just an opinion. Also it has definite emtb vibes. Oh I see... Wireless shifting. 🤔
@kinch04 13 күн бұрын
So.. the move feels like by an old Evo and get the new shock? Profit.
@FlowMountainBikeYouTube 11 күн бұрын
Potentially! We’ve asked the question about whether the GENIE will be available aftermarket and whether it’ll clear the sidearm on the Stumpy EVO. I shall report back! [Wil]
@kinch04 11 күн бұрын
According to Guy Kes it won't fit.. that's too bad.
@FlowMountainBikeYouTube 7 күн бұрын
I heard back from the team at Specialized - the GENIE shock will fit the old Stumpy EVO, and they did a lot of the early testing with that frame as they were developing the GENIE. However, there's no word on whether Specialized or Fox will be selling the GENIE shock on its own. Given Specialized owns the patent on the PSA design, it would make sense for it to maintain that point of difference for its own bikes. Who knows if that'll change in the future, but I'd like to see it! [Wil]
@kinch04 7 күн бұрын
Awesome! Thanks for the deep dive 🤘
@arthurd6495 9 күн бұрын
14k lolol
@gweflj 13 күн бұрын
I despise electronic motors and batteries to charge. Guess I’m out.
@antoniofeliciano2813 13 күн бұрын
64.5 head angle degrees? wtf
@KiwiInGermanyMTB 13 күн бұрын
That's the neutral position. You can adjust the headset cup 1 degree positive or negative
@antoniofeliciano2813 13 күн бұрын
@@KiwiInGermanyMTB I want a simple system
@dobsok84 13 күн бұрын
@@antoniofeliciano2813it is simple
@laurentp89 13 күн бұрын
@@antoniofeliciano2813 don't buy this then...
@testtesttesttesttest884 13 күн бұрын
Beat it nerd
@cheut 13 күн бұрын
i really dislike specialized bikes. Kinked seat tubes that ruin insertion and shock yokes that'll snap fox coil shocks: they've been making mountain bikes as long as anyone and these seem like oversights a newcomer would make
@cheut 13 күн бұрын
to be fair, the coil shock thing is Fox's fault too. they've been making shocks for forever, why use such thin damper shafts??
@southpawlibranine3511 13 күн бұрын
Same I hate them as a company especially the way they sue small bike shops
@southpawlibranine3511 13 күн бұрын
8900 for a rythm fork and propietary shock thats blow in a few months
@southpawlibranine3511 13 күн бұрын
Just buy a marin rift zone xr with better specs with axs for 3600 on bikes online right now
@southpawlibranine3511 13 күн бұрын
When has a proprietary shock ever worked before? The yokes are crap too and not to mention overpriced
@hambo76 10 күн бұрын
It's not proprietary though, it'll fit any bike.
@jeroenberger9064 3 күн бұрын
Just another bike.
@southpawlibranine3511 13 күн бұрын
Everytime i see a specialized im reminded how much of a mediocre company they are with questionable ethics. They try to he a high end brand without the actual high end
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